How do I download all compressed images?

Once the batch completes, click 'Download All (ZIP)' to get all your compressed files in a single organized archive, or download files individually.

Does batch compression work on smartphones?

Yes! The batch engine is memory-guarded and processes files in a lightweight concurrency queue optimized for mobile devices.

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Bulk Exact KB Compressor

Batch Image Compressor

Compress dozens of photos to exact target file sizes (50 KB, 100 KB, 200 KB, 500 KB) in one go. Real-time per-file progress and instant ZIP download.

Choose multiple images to compress

Drag & drop multiple JPG, PNG, WebP photos

Batch Compression to Exact KB

100% In-Browser Privacy GuaranteeZero Server Uploads

Your files are processed directly on your device via HTML5 Canvas & WebAssembly. No files ever leave your browser.

Safe & Private Instant Processing

Frequently Asked Questions

Helpful answers to common image compression questions.

Yes! Set a target size like 100 KB or 50 KB, and PicoFix will calibrate compression quality for every image individually so each one fits below your limit.